NPPES file of Aug 9, 2026

Christopher Xikis, P.A.

Physician Assistant · Setauket, NY

Christopher Xikis, P.A. is a physician assistant with a practice address in Setauket, New York, and NPI 1750437695, issued on Jan 25, 2007. Check the license (New York 009446, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1750437695
Name
Christopher Xikis
Credential
P.A.
Primary taxonomy
Physician Assistant 363A00000X
License number
009446 NY
Self-reported in NPPES; status is on the state search
Practice location
7 S Jersey Ave, Setauket, NY 11733
Phone
(631) 689-2700
Enumerated
Jan 25, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20040809000893); accepts Medicare assignment
Medical or professional school
State University Of New York At Stony Brook, School Of Medicine, 2003
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Christopher Xikis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 009446
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the New York license search

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37% fewer Medicare Part D claims than the average physician assistant in 2024

524 Medicare Part D claims for 155 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Christopher Xikis524
  2. Specialty average830

Most prescribed

  1. Buprenorphine-Naloxone121 claims
  2. Gabapentin27 claims
  3. Atorvastatin Calcium18 claims
  4. Naltrexone Hcl15 claims
  5. Amlodipine Besylate14 claims
  6. Acamprosate Calcium12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $22,371.20

81 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christopher Xikis$22,371
  2. Specialty average$842

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. CS Medical Associates, PCFarmingville, NY
  2. Samaritan Medical Services PCWest Islip, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Christopher Xikis among 15,555 physician assistant records in New York

Christopher Xikis, P.A. is one of 15,555 physician assistant records with a practice address in New York. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 13% of them.

  • NPI issued2007 · 13% of these records are older, 80% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2003 · median 2018 among the 8,158 with a school on file
  • Record last updated2007 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 physician assistant records list a practice address in Setauket

They are 4 of the 253 NPPES records with a practice address in Setauket, and 15,555 physician assistant records in New York.

The 8 physician assistant records with the nearest ZIP codes

  1. Jennifer Castelli, P.A.East Setauket, NY 117331184665374
  2. Maya Fox-Ryvicker, P.A.East Setauket, NY 117331497702666
  3. Caryle Francis, P.A.East Setauket, NY 117331154654499
  4. Grace Grandville, P.A.E Setauket, NY 117331033382098
  5. Thitima Herfel, PAEast Setauket, NY 117331265573919
  6. Christina Hull, PAEast Setauket, NY 117331598862211
  7. Maria Juvan, P.A.E Setauket, NY 117331972544260
  8. Christopher Koch, PAEast Setauket, NY 117331780858951

Common questions

What is Christopher Xikis, P.A.'s NPI number?

Christopher Xikis, P.A.'s National Provider Identifier (NPI) is 1750437695, issued on Jan 25, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Xikis, P.A. located?

The NPPES record lists a practice address at 7 S Jersey Ave, Setauket, NY, 11733. Phone: (631) 689-2700. Providers update this record themselves, so call before visiting.

How can I verify Christopher Xikis, P.A.'s license?

NPPES lists New York license number 009446, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Christopher Xikis, P.A. prescribe under Medicare Part D?

In 2024, Christopher Xikis, P.A. had 524 Medicare Part D claims for 155 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.